#!/bin/sh # Check stats output for SIG{INFO,USR1} and status=progress # Copyright (C) 2014-2018 Free Software Foundation, Inc. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src print_ver_ dd require_trap_signame_ kill -l | grep 'INFO' && SIGINFO='INFO' || SIGINFO='USR1' # This to avoid races in the USR1 case # as the dd process will terminate by default until # it has its handler enabled. trap '' $SIGINFO mkfifo_or_skip_ fifo # Terminate any background processes cleanup_() { kill $pid 2>/dev/null kill $pid2 2>/dev/null wait } for open in '' '1'; do > err || framework_failure_ # Run dd with the fullblock iflag to avoid short reads # which can be triggered by reception of signals dd iflag=fullblock if=/dev/zero of=fifo count=50 bs=5000000 2>err & pid=$! # Note if we sleep here we give dd a chance to exec and block on open. # Otherwise we're probably testing SIG_IGN in the forked shell or early dd. test "$open" && sleep .1 # dd will block on open until fifo is opened for reading. # Timeout in case dd goes away erroneously which we check for below. timeout 20 sh -c 'wc -c < fifo > nwritten' & pid2=$! # Send lots of signals immediately to ensure dd not killed due # to race setting handler, or blocking on open of fifo. # Many signals also check that short reads are handled. until ! kill -s $SIGINFO $pid 2>/dev/null; do sleep .01 done wait # Ensure all data processed and at least last status written grep '250000000 bytes (250 MB, 238 MiB) copied' err || { cat err; fail=1; } done progress_output() { { sleep $1; echo 1; } | dd bs=1 status=progress of=/dev/null 2>err # Progress output should be for "byte copied", while final is "bytes ..." grep 'byte copied' err } retry_delay_ progress_output 1 4 || { cat err; fail=1; } Exit $fail